Assessment of seasonal sedimentation in rain-fed irrigation reservoirs by a hillslope erosion modeling a:roach
文献类型：期刊论文
| 作者 | Weerakoon S. B. |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2005-09 |
| 卷号 | 2期号:3页码:225–232 |
| 关键词 | Catchment Hillslope irrigation reservoir sedimentation soil erosion village tank |
| ISSN号 | 1672-6316 |
| 通讯作者 | Weerakoon SB |
| 英文摘要 | A distributed hillslope model is presented for the computation of seasonal sediment loads flowing into the rain-fed irrigation reservoirs (tanks) from the mountainous catchments in Sri Lanka. The model is based on the subdivision of the catchment into hillslopes and a:lication of a sediment transport capacity equation at hillslope scale and computation of sediment loads transported to the tanks. Coarse and fine sediment loads due to hourly excess rainfall during a season are separately estimated. The model depends on fewer parameters and can be easily calibrated for a tank. The model calibration only requires measurements of coarse and fine sediment loads transported into the tank due to several rainfalls of different intensities from a representative subcatchment of the tank. Coarse sediment loads are measured by using a sediment trap installed across an ephemeral stream draining the subcatchment. Fine sediment loads are obtained by measuring the discharge and accompanied sediment concentrations over the sediment trap. The model is calibrated, verified and a:lied for an irrigation tank in Sri Lanka to estimate the seasonal sedimentation loads. |
| 语种 | 英语 |
| 公开日期 | 2013-08-15 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/6153]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2005_Vol2 No.3 |
| 推荐引用方式 GB/T 7714 | Weerakoon S. B.. Assessment of seasonal sedimentation in rain-fed irrigation reservoirs by a hillslope erosion modeling a:roach[J]. JOURNAL OF MOUNTAIN SCIENCE,2005,2(3):225–232. |
| APA | Weerakoon S. B..(2005).Assessment of seasonal sedimentation in rain-fed irrigation reservoirs by a hillslope erosion modeling a:roach.JOURNAL OF MOUNTAIN SCIENCE,2(3),225–232. |
| MLA | Weerakoon S. B.."Assessment of seasonal sedimentation in rain-fed irrigation reservoirs by a hillslope erosion modeling a:roach".JOURNAL OF MOUNTAIN SCIENCE 2.3(2005):225–232. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。